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Finding the Fourth Proportional to 73,055.52, 109,541.04 and 28,630.32

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Solution

The fourth proportional to 73,055.52, 109,541.04 and 28,630.32 is: 42,928.93

Step by Step Solution

  1. Step 1: Write the proportion equation
    73,055.52 : 109,541.04 = 28,630.32 : x
  2. Step 2: Convert to fraction form
    73,055.52/109,541.04 = 28,630.32/x
  3. Step 3: Cross multiply
    73,055.52x = 109,541.04 × 28,630.32
  4. Step 4: Simplify right side
    73,055.52x = 3,136,195,028.33
  5. Step 5: Solve for x
    x = 3,136,195,028.33/73,055.52
  6. Step 6: Final answer
    x = 42,928.93

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Why These Related Problems?

These problems maintain the same ratio (1.50) or explore similar proportional relationships. Practicing with related ratios helps build understanding of proportional relationships.